«ثم إن الجامع الخيالي هو تقارن الصور في الخيال»
The imaginative link is the association of images within imagination.
The relevant association is already available before the conjunctive expression: one remembered image makes another readily present. It need not rest on the external similarity of the things; it may rest on their repeated mental co-occurrence.
Nevertheless, noticing that co-occurrence is itself recognition of a relation. The distinction between representations and the meaning of their association must therefore be preserved.